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arm64: Add cpu_feat_disabled for disabled features
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Authored by andrew on Sep 16 2025, 4:51 PM.
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Details

Summary

When a feature is disabled we may need to run a cleanup handler, e.g.
to remove a feature from the sanitized ID registers. Add support for
this with a new feat_disabled handler.

Sponsored by: Arm Ltd

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rG FreeBSD src repository
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